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27789 Astrakhan (1993 BB7)
Classification: Main-belt Asteroid          SPK-ID: 2027789
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05125599966422367 3.6548e-08  
a 3.070136424909236 1.5803e-08 au
q 2.912773513344968 1.1466e-07 au
i 10.38392004747117 4.4307e-06 deg
node 152.1739035045725 1.8878e-05 deg
peri 331.387976507663 4.725e-05 deg
M 38.21366211667657 4.1323e-05 deg
tp 2458791.930357483075
(2019-Nov-04.43035748)
0.00022587 TDB
period 1964.875051148933
5.38
1.5171e-05
4.154e-08
d
yr
n .183217757174684 1.4146e-09 deg/d
Q 3.227499336473505 1.6613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2305  
   data-arc span      15799 days (43.26 yr)  
   first obs. used      1977-03-12  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:36:04  

Additional Information
 Earth MOID = 1.93173 au 
 Jupiter MOID = 1.79729 au 
 T_jup = 3.204 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457201.5 (2015-Jun-28.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05248391391437369 3.6719e-08  
q 2.908488506072252 1.1551e-07 au
tp 2456831.282883780051
(2014-Jun-22.78288378)
0.00022268 TDB
node 152.1967728970659 1.8878e-05 deg
peri 332.1500600806543 4.6102e-05 deg
i 10.3844995721782 4.4311e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2305  
   data-arc span      15799 days (43.26 yr)  
   first obs. used      1977-03-12  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:36:04  

Additional Information
 Jupiter MOID = 1.79729 au 
 T_jup = 3.204 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.348295743085475E-15 -4.206450022208607E-15 2.575005786972583E-12 -2.829592393808976E-15 4.957788618533274E-13 -6.164758905324623E-16
q -4.206450022208607E-15 1.334318178203341E-14 -8.852681004775564E-12 8.408272501766328E-15 -1.69288537575778E-12 1.683084781441768E-15
tp 2.575005786972583E-12 -8.852681004775564E-12 4.958841675465249E-8 -1.464641234285108E-11 9.37706930476045E-9 8.293047666496954E-12
node -2.829592393808976E-15 8.408272501766328E-15 -1.464641234285108E-11 3.563605608095084E-10 -3.530076458636763E-10 5.826771577773854E-12
peri 4.957788618533274E-13 -1.69288537575778E-12 9.37706930476045E-9 -3.530076458636763E-10 2.125363665438411E-9 -4.19710531446919E-12
i -6.164758905324623E-16 1.683084781441768E-15 8.293047666496954E-12 5.826771577773854E-12 -4.19710531446919E-12 1.963508883391474E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO502365  
diameter diameter 9.355 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.609 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.199   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27789 Astrakhan           Discovered 1993 Jan. 23 by E. W. Elst at the European Southern Observatory.
The Astrakhan Khanate, a Tatar feudal state, was established around 1460, after the collapse of the Golden Horde. Its territory included the lower Volga valley, the Volga delta and the steppeland on the right bank of the Volga river.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1915-Jul-28 03:04 00:02 Jupiter 1.81343073556335 1.81343032242059 1.81343114870684 3.7828837934241 3.65732743443694 2420706.627811753 2.33145520202161 186.057869410804 17.1027079799242 87.8754780108879 3373288.08235454 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 19:36:20 2020-Jun-23 19:36
1974-Sep-25 11:52 < 00:01 Jupiter 1.80965177029973 1.80965137258929 1.80965216801017 3.77329212890415 3.64713818041737 2442315.994571726 0.943168531350974 79.911491388924 17.3231915416751 89.1600851644718 3344546.46085532 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 19:36:20 2020-Jun-23 19:36
2033-Nov-24 10:13 < 00:01 Jupiter 1.8106156256382 1.81061523353636 1.81061601774005 3.76785873852505 3.6415849871677 2463925.925691780 0.49032280324283 51.304403268839 16.685158094921 85.4382095746773 3361090.07247502 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 19:36:20 2020-Jun-23 19:36
2093-Jan-23 18:59 00:02 Jupiter 1.81603999042342 1.81603957075348 1.81604041009388 3.76622503542643 3.64027847546356 2485536.290771346 1.85565907989845 148.31663507318 17.4712313521298 -87.1848692386743 3388873.6309851 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 19:36:20 2020-Jun-23 19:36
2152-Mar-26 12:25 00:03 Jupiter 1.82570032992796 1.82569970334208 1.82570095652141 3.76841661201318 3.64322329519679 2507147.017615112 3.24785506856544 247.616901752225 17.7668742684983 -84.363831432723 3443482.68489086 T 32 CATAB v2.0f-lin.ifort 2020-Jun-23 19:36:20 2020-Jun-23 19:36

Alternate Designations
 1993 BB7 = 1977 EK2 = 1999 GO17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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